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3 years ago

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Use Target Reading Skills After you read the section, reread the paragraphs that contain definitions of Key Terms. Use all of th

e information you have learned to write a meaningful sentence using each Key Term. a. chemical equation:

1 answer:

Ksju [112]3 years ago

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When non metals form ions what ions do they tend to form?

Maurinko [17]

Non-metals have a larger number of outer electrons called valence electrons. Therefore, it is easier for them to "steal" valance electrons from other elements with fewer valence electrons(usually metals)

For example, Chlorine(Cl) has 7 ve-. When forming an ion it will steal one electron from a metal. and gain a charge of -1. Because the ion is NEGATIVELY charged, it will be called an anion.

Nonmetals form anions.

Vocab:
cation: Paws-itively charged ions (get it? because its a CAT ion?)
anion: negatively charged ions

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4 years ago

You plan to use the water displacement method to determine if a ring is pure silver

timama [110]

The water displacement method is a set of measurements used to calculate the volume of an irregularly shaped object. These objects are commonly known as irregularly shaped solids.

<h3>What is water displacement method ?</h3>

The displacement method (also known as the submersion or dunking method) can be used to accurately measure the volume of the human body and other irregularly shaped objects by measuring the volume of fluid displaced when the object is submerged.

Place your jewelry on a table or in your hand, and pour some white vinegar directly on the metal (a dropper can also be used). If the metal of the jewelry changes color, it is not pure gold; if it continues to shine, you have real gold in your hand.

Thus, The water displacement method is a set of measurements used to calculate the volume of an irregularly shaped object.

To learn more about water displacement method, follow the link;

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6 0

1 year ago

What is the importance of carbon

TEA [102]

The importance of Carbon is that it can clean, and its kind of bad for air though.

5 0

3 years ago

Read 2 more answers

Calculate the mass in amu of 75 atoms of aluminum

lyudmila [28]

<span>Calculating mass using Atomic Mass Units (amu):. Ex. Calculate the mass, in amu, of a sample of aluminum that contains 75 atoms. 1 Al atom = 26.98 amu.</span>

4 0

3 years ago

You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. What is the percent yield of CO2?

liraira [26]

Answer:

79.14%

Explanation:

Given the equation : 2Fe2O3 + 3C 4Fe + 3C02

The theoretical yield of CO2 ; is 102.6g

Actual yield = 81.2 gram

Percentage yield = (actual yield / theoretical yield) * 100%

Percentage yield = (81.2 / 102.6) * 100%

Percentage yield = 0.7914230 * 100%

Percentage yield = 79.14%

Hence, tbe percentage yield of CO2 is 79.14%

4 0

3 years ago